Event between (470309) 07JK43 and star GA1100:07681030 with event index number of 2230284
Geocentric closest approach at 2028/07/16 00:24:55 UTC
J2000 position of star is 19:12:04.0 +20:02:12
Equinox of date position of star is 19:13:08.0 +20:04:45
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 97 degrees from the moon.
Moon is 39% illuminated.
Apparent brightness V=21.8
Object is 27.7 AU from the Sun
and 26.9 AU from the Earth.
Apparent velocity is 23.4
km/sec on the sky relative to the star, or,
4.3 arcsec/hr.
The 1-sigma error in the time of the event is 88 seconds.
The 1-sigma cross-track error in the shadow position is
1483 km.
The object has an absolute magnitude Hv=7.3
Diameter=209.9 km assuming a 5% albedo -- 9.0 sec chord
Diameter=85.7 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is CENTAURS
Star training set for 470309, (2028/07/16 00:25UT) Object RA Dec mag sep mel Vega 18:37:54.2 +38:48:40 0.0 20.22 95 Tarazed 19:47:37.0 +10:41:05 2.7 12.51 92 1 Sge 19:16:31.2 +21:17:01 5.7 1.41 96 PPM 108653 19:16:17.1 +20:15:17 6.8 0.72 96 PPM 135941 19:13:40.9 +19:47:33 9.6 0.31 97 470309 19:13:18.6 +20:05:11 16.8 97 Positions are for equinox of date
Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 470309, (2028/07/16 00:25UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 20.22 95 Tarazed 19:46:15.6 +10:36:48 2.7 12.51 92 1 Sge 19:15:17.4 +21:13:55 5.7 1.41 96 PPM 108653 19:15:02.7 +20:12:11 6.8 0.72 96 PPM 135941 19:12:26.2 +19:44:33 9.6 0.31 97 470309 19:12:04.0 +20:02:12 16.8 97 Positions are for J2000
Event circumstances last updated at 2024/06/24 21:33:10 UT
Marc W. Buie, Southwest Research Institute